Girls Aloud could be set for a chart comeback as fans download one of the group's album tracks to honour the release of Sarah Harding's autobiography Hear Me Out; released today.Following the news of her terminal advanced stage breast cancer diagnosis last year, Sarah has been vocal about how fans' support 'helps so much' on 'the bad days.' So, in a bid to show the Celebrity Big Brother winner some love, dedicated Alouders have rallied together to download the group's 2004 What Will The